<!DOCTYPE html>

<html>

<head>
    <meta charset="UTF-8">
    <title>龙臭臭专属圣诞树</title>
    <style>
        * {

            text-align: center;

        }

        html,
        body {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
            border: 0;
            background-color: #0b0825;
        }

        #c {
            margin-top: 100px;
            width: 90%;
        }
    </style>

</head>

<body>
    <canvas id="c"></canvas>
        <script>

            var collapsed = true;

            function toggle() {

                var fs = top.document.getElementsByTagName('frameset')[0];

                var f = fs.getElementsByTagName('frame');

                if (collapsed) {

                    fs.rows = '250px,*';

                    // enable resizing of frames in firefox/opera

                    fs.noResize = false;

                    f[0].noResize = false;

                    f[1].noResize = false;

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                    fs.rows = '30px,*';

                    // disable resizing of frames in firefox/opera

                    fs.noResize = true;

                    f[0].noResize = true;

                    f[1].noResize = true;

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                collapsed = !collapsed;

            }

        </script>

        <script>

            var b = document.body;

            var c = document.getElementsByTagName('canvas')[0];

            var a = c.getContext('2d');

            document.body.clientWidth; // fix bug in chrome.

        </script>

        <script>

            // start of submission //

            M = Math; Q = M.random; J = []; U = 16; T = M.sin; E = M.sqrt; for (O = k = 0; x = z = j = i = k < 200;)with (M[k] = k ? c.cloneNode(0) : c) { width = height = k ? 32 : W = 446; with (getContext('2d')) if (k > 10 | !k) for (font = '56px Impact', V = 'rgba('; I = i * U, fillStyle = k ? k == 13 ? V + '205,205,215,.15)' : V + (147 + I) + ',' + (k % 2 ? 128 + I : 0) + ',' + I + ',.5)' : '#cca', i < 7;)beginPath(fill(arc(U - i / 3, 24 - i / 2, k == 13 ? 4 - (i++) / 2 : 8 - i++, 0, M.PI * 2, 1))); else for (; x = T(i), y = Q() * 2 - 1, D = x * x + y * y, B = E(D - x / .9 - 1.5 * y + 1), R = 67 * (B + 1) * (L = k / 9 + .8) >> 1, i++ < W;)if (D < 1) beginPath(strokeStyle = V + R + ',' + (R + B * L >> 0) + ',40,.1)'), moveTo(U + x * 8, U + y * 8), lineTo(U + x * U, U + y * U), stroke(); for (y = H = k + E(k++) * 25, R = Q() * W; P = 3, j < H;)J[O++] = [x += T(R) * P + Q() * 6 - 3, y += Q() * U - 8, z += T(R - 11) * P + Q() * 6 - 3, j / H * 20 + ((j += U) > H & Q() > .8 ? Q(P = 9) * 4 : 0) >> 1] } setInterval(function G(m, l) { A = T(D - 11); if (l) return (m[2] - l[2]) * A + (l[0] - m[0]) * T(D); a.clearRect(0, 0, W, W); J.sort(G); for (i = 0; L = J[i++]; a.drawImage(M[L[3] + 1], 207 + L[0] * A + L[2] * T(D) >> 0, L[1] >> 1)) { if (i == 2e3) a.fillText('Merry Christmas!', U, 345); if (!(i % 7)) a.drawImage(M[13], ((157 * (i * i) + T(D * 5 + i * i) * 5) % W) >> 0, ((113 * i + (D * i) / 60) % (290 + i / 99)) >> 0); } D += .02 }, 1)

// end of submission //

        </script>

</body>

<html>